Display device



Feb. 12, 1929.v 1,701,739

H. G. WARD DISPLAY DEVICE v Filed oct. 15, 1925 4 sheetsheet 1 E135.. E

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SEATTLE l's we CITY SEaTTLf IS Owe C/TY l l l a az F .1 4f u H In M f "Fm M L/ss 5" |1||||H| n 86 ,//I/I `\34 4Z 'IIN `\80 L\ I 31a/vento@ k- Q'7 v Mg f Harris G. Ward Feb. l2, 1929. 1,701,739

H. G. WARD DISPLAY DEVICE Filed Oct. 15, 1925 4 Sheets-Sheet 2 Fai-5 WEHm.

Ffzos P512 Toen-H54? I31a/wanton lo Harzs G. Ward Feb. 12, 1929.1,701,739

H. G. WARD DISPLAY DEVICE Filed oct. 15, 1925 4 sheets-sheet 3 0 O 5/.f/ o

O O 0 30 30 o o i o f 76 as 0,0 0` 0 O O 0 0 0 O 0 O O O O 0 O 0 0 o I FE' Harris G. Ward Feb. l2,

DISPLAY DEVICE Filed Oct. l5, 1925 4 Sheets-Sheet 4 v o 0 0 D 0 0 O C OO 0 0 \0 0 O O OLO O O O o /l 34 y .-3/ .fl 33 5'!" o o 60v o o /0 o 30a l 7 o 40 o 68 .5, o@ /4/ 7v o o o o o o o o o o o o o o o o o o o 6 3'A lo] Ie o l 45 43 Harz/'risward inverted into display posi `l@etenteilFelon. l2, 1929.

emersi orties.

HARRIS G. WABQ 0F VASEEON, TNASHINGTON.

DISELAY BEVCE.

Application filed. October 15, 1925. Serial No. 62,539.

My invention relatesto a display devicea and more particularly to the les ol' such devices wherein a series et independent display sheets are naintained in a magazine, to be removed therefrom one altime andindependently exhibited, and then returned to the magazine.

One out the objects ot my invention is the provision of a novel methodol handling such display sheets, and the provision of a novel mechanism*for carrying ont the method, whereby flexible sheets are maintained ininverted position in the megas' and are removed there'ron'i one at time?n. and .tinally re-inverted and replaced at he back side of themagazine, thence moving` bodily forward through the magazine.

further Objectis the provision in a display device of two types ofdisplays, one comprising a series ot different displays to be exhibitedin succession, and the other comprising` a display for an underl fingbasic which is displayed recnrringly, to the end ot empl asizing itsmessage through constant repetition,

fr further object the provision ot satisfactory, simple operating andcontrol means ttor the various display mechanisms, and the pri/)visionof such operating and control mechanisms as will give satisfactory andcontinued service vithout the necessity for itrequei t adjustment orrepair.

@ther objects reside iny the provision suitable mech 'cal structures forcarrying out the princiy4 es oi my .inve tion 'es iur'- ther describedin this speciicetion.

My invention comprises the novel mech- :mism and the novel parts andarrangements, shown'in the accompanying' drawings, le cribed in thefollowing specification, and

Poulet-ly doincd by the claims terminatyhe saine.

ln the accompanyinjidrawings ll have shown :in embodiment ot myinvention i es its present preferred form.

i elevation oli the display dcby the observer, and Figure 'on shoe-'i adirlerent 'TH f o an elevation with part of i removed, and in sectionthe display in process of change; nre l is a side elevation with partoit lramewcrlr removed, and inA section il;

' sheets 9 lustrzfiting the general arrangement of the psrts rg,

lligure 5 is a rear elevation oit the drive mechanism Figures G and 7are lile sectional views transversely of the main control mechanism,illustrating` parts in different positions and relations. i

Fig. 8 is a detailed sectional View taken on line SHS o Fig. 7. f

ln one aspect myinvention is concerned with the presentation of amessage which it i, esired to drive nome to the observer, and

i( the observer of" a series of different messages, views9 pictures orthe like, relating to the basic or krecurrentidea and designed to retainthe interest of the observer. lt is recognized in the psychology ofadvertising that a messagej to be retained by the observer, must bedriven home by constant repetition; lt is also true that 'the observerlsattention must be retained and he must be dive ed from the sameness otthe repetition by changes in the matter presented, or in form.

lilly invention is designed to take advantage of these principles otadvertising, and to present the basic ideain the form ot a display whichis only before the observer during periods intervening between thedisplaycalcnlated to retain his interest, but which is constant y beingrepeated. This, in the present embodiment, may be done by presentiirg`the recurring idea upon a disy sheet which is ordinarily withdrawn outof sight,r 'for example7 upon the sheets 9 and 9 which will part topermit the observance of the several 'independent and lexiblefsheets'typi'tied by the sheet l. The and 9 are suitably mounted to beiif'ithdrawn, as upon the rod 91, and are controlled for movement insome suitable mannen as, :tor exan'iple7 by means et thecontinncriscable 92 passing` over the sheave or drum and secured te thelsheets l) and 9 at the points 90 and 9G respectively. By giving thesheave 93 an intermittent movement in opposite directions, the sheets 9and 9 arealternately openedand closed. They may be weighted at theirlower ends particularly at their adjoining corners, as indicated 9%, toinsure thatlthey will hang smeothly and will come together.` Themechanism', including the shitting display U. lLS

Velated therewith is 'the presentation to iOO eenl'rol ineens; to bedeseribed, herezrfI muy be eneloecri Within u suitably embele n 1 esupported on ii' 1Aiibie sheets l. euch of Whiei 1.a; provided wi i. l l

i rofl l() und u rod ll e1;-

ly aereas i'iie top and boi un edge, reepeeiiveljyg ef lhe sheet. Le ikein i number of he' ai nuguzine f" il i xe mee/ent einbilL u mpiiseilof two pauw; of inclined ehi neel-like trucks 20 und il, respee'i'el) iel' he rfuls 'if :ire receivable i: die heele; 20? unal the enfle l Ll`I o? ih-e wils il in ie i'iuehe 2l. wherein they 'iree to slide ouuriiihe ower end of the 'fhus ei'ipporieih ehe heels :ire in le onewieieonlyY nfl Conf-rel rueeln 'iha't il e opposite ien thereof'. Sriilee Ylennui with 'fue rodVN 'n il to invert 'heni, :incl [hen to guide rheininto displ pesiioin then torre-i Verii'heni fio deliver then o thereeaivinifi poi-n if* be .magazine ille nn zine b-iiiiig reprefseni'eilin general by rlie nuiiueral 2. Such guides, i :v eoinprise theChannel-like ne; sind he rollers Si) use" These iraele; or

J reci )secretion by a inembe eiee e level1 plvoted at lo r aeaned te beengaged by suitable ineens 'e oneree ihe Selector, und having iis ohertionecl no be engaged by the se.

i' iiuure he return of the )r inisnis their noi nel eloseil position.'inlie 'e gute members 40 at upper enil, boih ie rispeezlve rods l J-.fr .i i im einen L- o.A Lne einem loue l nmguzlne, und upon downnuiiiniovemeni o? he gue nienlbelS l0 :nul

l H in nioveai dewnu'urel Sughi olli 'lille i'ruei (s 2O und ur ou :irepiovideil for hen engin:- 4 t :unl advancing il', "hese coui- 'ifinlg inlie, present n'ieelninisin e pin 5, vim-'h is inomble in u eioeeil pathwhich ineludev "he delivery peint of the magazine 2 l l "e receiving`peint. As shown herein, Jdie n o: which *we are preferably userh is byai chain 50 which is Carried upon k#preek/ae 5l efr-axial with therollers 30 unil 5l,n oneieie of rhe pa'h o? ehe display Sheefs. ln heinziin howevu', the run of the ehuin il eoineiiles; with Jdie tracks orguides 3 "For 'lhe display ehe-e". Thug the iop rofl l0 el :i Sheriwhich has jus'l been reinOVeCL from he udine. ie positioned in the pziho 'he und, :is eeen in Figure 7, he pin pin lower right hand cornercontinuing its ce in the direeion el' the arrow, will Y Vhe roel lO. lnFigure 6 the ne ie 'i :ie engaged beneath bhe roel l() i. the, ofadvancing the display sheet l to ny position, The Sheet l, i5 will beeen, ie puseed beneeL he rollei` 30 "so reverse 'op for bottoni.

Yill Je not al in Figure '7 'iinu u inein- G ie pivefgeil ui; 6() lhe ponl: where, ,e foil l0 ie picked up by the pin 5 und is Q fr i limitedneoveinenl'y between be side@ guiee 3. This; iets as e beekine; le he:ulmneinpj pin 5 from Wishing: .Y lf upwurfl und 1` uffi-sing'ih-erebeneulli. e hu he Verl l() will be. carri/Jil '.i'orwnrii in:nli'enee oi he pin lt,

.-i .urli iiiee'l) een 'hen be zrown downward by die lowing' pin il 1Apiedini: hereoi I 'I limi rdie pnA die ine 4e- Y for mechanism und thai;'h

'er fr e 1S poeieioned in the pa so ihm if elle seleeior ineinbr We y@iesuined their normal, Cloeeal p l will be returned to such position byi 5 as it engages the enel 45 and prioi.1

esi

to engagement of the pin With the rod 10. .ifhis .insures closin@- ofthe magazine prior to advance of the delivered display sheet y The chain50 and pin 5 advanced in the direction of the arrow in Figures 5 and 7,to curry :i sheet delivered frein the ningezine into display position etthe iiront oi the niega-Ziele. Here it is held in position, the cover.sheets 9 and 9 being` then opened and finally closed, following whichthe pin 5 rer-:unies its advance end nieves the display sheet reindisplay positron, reversing it top for bottoni and bringing it to thereceiving point oi' the ineggiizine In the ineen- ,in'ie the second pin5 hes releases and then picked .up n second 'display sheet end hasadvanced it to the display position, Wherenpon the sheets 9 and 9 areopened. llignre (3 shows :i sheet being advanced inte the c ispliiyposition und zi sheet being moved therefroin. lilignre 7 shown :i sheetinnnedintely :liter beginning its inoveinent away from the displayposition, end shows e pin 5 in the iirst step-oi releasing ny neiv sheetto be :idvzinced thineby. Suitable interinithint control niechsnisin isprovided for yoperating` the chain sind 'for operating the sheets 9 :ind9 in the iininner described, and this niechzinu isni will be describedhereinafter.

Giving tothe manner of handling the sheets, moving; thein bodily forwardthrough the nnigozine, it is necessary that ineens be provided whichwill permit the top rod l to poss the upper track 2l, but which Willinsure that the bottomL rod 1.1 is intercepted. l have, therefore,provided switchmechanism posv :ind et the receiving point of the track2l. This comprises e lever 7 pivoted :it 70 end having` one erin 7linovable across the path of the rods sind troni such path. The other:irin 72 connected by links end levers 73, 7 and T5 to e control. lever76, pivoted et 77.

striker nieniber 7S corrieri by the switch nieniber 'T is inov: ble intothe .nath el the l A\ I pin when ine switch iendpoint i are nioved ontli `which pro:` the switch is thrown into the position shown in .Figure6. ln this kposition of the switch point'the loll/owing` rod il isintercepted, this interception occurring s oben-.t the time that therodi() :caches thek diverter 79. The result is that these tivo rods arenioved ont or the guide 3 and into their respective ti-:ichs and 2l, thepin 5 continuing in line tioned adjacent the pzith of the pin 5- Wit-hthe back run of the chain. The saine pincontinuing, strikes the1nernber4l4, releases a new sheet and continues picking` up the sheet.in passing it engages the member TG, which is connected to the switch 7,`and resets the switch in the yposition shown in i'lig'ure 7.

A single nietor M nniy be employed to operiV te all :.t.tiie movements,this bein conwheel 82, hiivin` opposite radi; l slots 43 end rl, isconnected to the d 'urn or sheiive 93 sind is positioned so that itsslot 83 will be engaged by the pin 8l, or so that 'its slot 233 Wil`- beengaged by the pin '81. Thus, by alternate enneigement of the pins cli:ind 8i with. the 'i slots Il :ind E. the shezive 93 is nioved alteristely in counterclock vise direction und. hen clockwise Il) nieve thesheets 9 and into open o3.- closed position.

A wheel is likewise position d adjacent the ninster freer 8 und isprovided with 1p posite redini ots 85 which are positioned to be engagedby either one, but not both o'if the pins 8l and Si', preferably theletter. 'illiis may be accomplished by varying slightly the ri dialdistances of the .sheuve lliand wheel Se, or by varying` the lengtl'isot the pins and the .spacing of the shefive Q3 fini Wheel gli troni thegeen 8. This wheel Si i so disposed that ciigogeinent or' the pin. wi yheither slot S5 will r tete the wheel. Sii through s, heli` revolution,snee ssive engageinents of the eine pin. 8l rotating; the wheel in thesinne direction. The pin 8l does not engine n slot- 85, it the pin 8lengijzi ory ,ricV versi. This wheel El connecte(4 ss by the beveled 89:inf is ehein 86 passing ove 'Y sprockets 87 end El( to 'l LL theshaft/8S, which (ferries ine' drive geef 5l 'for .die chain 50. By theseor equivalent ineens the tliziin is intermittently advanced in be'nveenperiods vhen the sheets 9 and 9 are in closed oosition. f

lt vvll be nnderstmid rthiit the details of niy invention con be Widelyvaried, end l do not vv 4h to be understood through iny de scription oita. preferred embodiment, :is limiting' inyseilf. thereto in nny wey,except ss deiincd by the, :lziiins ternihinting1 this Essentnilly, niyini'ention comprises in one aspect thek einploynient of theL recurringdisoiiij sheet which presei i i basic nies x dni' ii'iteri'iils tl'izittheinterest-remi sheets are being shifted.y In another aspect theessence or iny. invention in the hitnfiling' if the independent dispis'j.sheets in Vthe, nisi'iner described, moving the-ni bodily n iiorivwrdin inverted position through e niegiii() lil) azine, pieliing them upand'inveiting,` them While moving' them to display position, againinverting` them and finally delivering them inverted to the rear Side olthe magie zine.

lilhile ie not essential, l prefer that pins 55 he provide i s, attachedto and movable with These pins 55 spaced soi eaeh other and ending' pins5 in e vill receive hetween them thi,l u rod l1 of the displav sheet'which being;` advane d by the H VH1 as Tl, 79, Lil, lo, 76

correspond Y pin i. oi' the moet advaneee prevent he rod ll the basl;run. or t and 5, some oi1 -which are engi: id by the pms The pms 5constitute the leed means and eonetitue alfso the timing iiieai'is hywhich the operation or" the Yarious meehanisms is Coordinated.

lVhat l claim as my invev tion is:

l. A. display apparatus eoinpiising` a magazine adapted to hold aplurality7 ot independent, il ible sheets in inverted pesie d means;movable in tion, sheet g'uieee, 'lE e an endless path about saidmagazine, said feed means being eiieageable with the reversed top edgeoi' a sheet to reinove it from the magazine, and cooperating With said,fluides to revei'ee it and to advance it into displab7 position, toagain reverse and finally to retin-n it to the nagazine in invertedposition. n

2. A, display,7 apparatus comprising a iii-ae'- vzine adapted lo hold aplurality ot in i i inverted p pei dent` flexible eheilie ii oeilion,sheet ggfuides, Vleed means movable in a closed path a` oiit saidinfieazine, said feed ineens heine ei giapgealile ivi li the reversedtop edge oil a eliect remove it troni the nagaziue, and eooperaling withs l -des to reverse il', and to advance it int li -i'v position, to

in reveiee il, ziii i l o return it to the iiiagi'azine in iiifxer aposition, and ee- 2jr )in the n'iaggazine, to ie-invert it and move tinto dieplay position, and Vinally to invert i ieeheel `oid return it,inverted, to the niagazine.

el. ln a display apparatus, in Combination with a terrible display,7sheet having tranev'erse reds ft top and bottoni, a magazine l. n

reeeiving aid sheet in inverted position roinpiising,` pairs ti'aeletei' receiving the flop and bottom rods thereof, respectively, leedAneans ino vable in a closed path including the reception point and thedelivei,7 point` of said magazine, and eng: geable with the te) rod etsaid sheet to remove the sheet 'from the magazine, to re-inveit it. andmove ily into display position, and linally to invert the sheet andreturn it, inverted, to the inagzizine, said feed means also iii-findingire- ,raiiiing means positioned to restrain the ,iottom rod of 'thesheet.

i a displa)T apliiiral'us'i, in combination v-:il'h a flexible displaysheet having` transveree rods at top and bottom, a magazine forreceiving said sheet in inverted position Coniprism?,Y pairs el' trae tefor reeeivingi` the top and betteln rods thereof, respectively, feedmeans movable in a closed path including die reception points of bothpairs of tracks, 'd the leliveiy pointr et the lower pair of iii ichs,and engageable with the lowerniost or tep rod ol" said sheet at thedeliveryY point of the inver pair of tracks to remove the /iet from themagazine, sheet guides, said l means Cooperatin;y t'

i f t, `o move it int-o dif-:play i" ien` w invert, it a, ain, and todeliver the iop and botton rods thereof again to the reptif'n pointe otthe lower and upper pairs J l (3. In a display appara! i llexloledisplayY ,t

ide iop and liz, m, ely,

alf/ine igor ifeLeifdi'ie` .said :i-ilieet in ini" )oeiiion eompiieiugpairs ot raeln: Jior receiving Yhe ip and bottoni rodeA thereo'lf.respeetivii". feed means movable in a (flowed path inludine the deliverypo'iil ot he insgA` nine :ind il4 i' poin inelufh alie i'ei-eptiou enIq' l upper and zielte, said Qing:

rfiih the lo' f et to remove 'ghe wheel' om Vthe magai' into display'sillon and re- 'eried position f th ite top and irewui'ed 'lo hereception pointe l upper tracks, repeetively, iiiher adgaeent tl* freelL l and ierippei pair of tracks l' l o a rod,

ee o permit passage and tiined with said` feed ineens to niove intoposition to intercept the bottoni rod following` passage of the top rod.

7. fr display device as in cle-,iin 6, the switch ineinber being`engageable by the feed nieniber after the top rod is clear ot theswitch, to be moved thereby intoV position to intercept the bottoni rod.

8. ln combination with display apparatus as in claim 6, a diverterlfined vin the path of the top rod adjacent the reception point of thelower pair of tracks, and engageable with the top rod to disengage itfrom the ,teed means and to direct it into the niaga- Ziiie.

9, A display device as in claini G, the ,ch ineinber being engageablc bythe feed ineniber atter the top rod is clear ot the switch, tobe niovedthereby into position to intercept the bottoni rod, and a diverter ntixed in the path of the top rod adjacent the reception point of thelower pair of tracks, and engageable with the top red substantiallysimultaneously ith the engaoeinent ot the bottom rod with said switchineniber, whereby the rods are simultaneously disenfgaged from the eedmeans and received by their 1 respective magazine tracks.

l0. ln combination with a display device as in claim 6, a switch-returndevice tiincd with the leed ineens and operatively connected with saidswitch member to return the saine to norinal position tolli'iwing itsinterception ot the bottom rod.

irri display device as in claini G, the switch nieinber being,iengageable by the feed ineniber after thetop rod is clear of the switch,to be inoved thereby into position to intercept the bottoni rod, adiverter positioned adjacent the reception point ot 'che lower pair oi"-tracks and engageable with the top rod to disengage it treni the feedmeans, and a switch-return nieans positioned in the path ot the feedmeans and operable thereby after retin-n ot the sheet to the magazine toreset the switch member in new mal position,

ln :i dir-play apparatus ior a plurality ol irnlependent, flexiblesheets, a guide tor said sheets comprising` a track for maintain ,ingsingle sheets in position for endwise nioveinent, the initial portion otsaid track including ineens engaging the uppermost portion of a sheet torestrain it from falling, a magazine interposed between the ends oi"said track an d eoniprisingineans perinittinn` bodily lateral nioveinentof the sheets, and

' sheet feed ineens engageable with the lowerbetere positioningthe sheetin display po-' in clai sition, and tor rciiiverting` it prior to itsdelivery therefrom to the magazine.

13. In a display apparatus, in combination with a plurality otindependent,v flexible sheets, each having transversely extending topand bottoni rods, a guide for said sheets comprising a track for saidrods, for main taining single sheets in position for endwise movement, amagazine interposed `between the ends ot said track, and including opper and lower pairs ot tracks for receiving the bottoni and top rods,respectively, or the sheets, said track including an initial sectionincluding` the delivery ends ol" both mag azine tracks, and arranged torestrain the uppermost or bottoni rod troni trilling, and sheet 'icedineans movable in a closed path includingthe lowcrinost portion olf theinitial section, and the remainder oit the sheetgniding track, andengogeable with the lowerniost or top rod oi' a sheet positioned in.said initial sect-ion oi: track, thereby to advance the sheet.

ln combination with a display device as in claire 13, a selectoroperable to deliver a single sheet troni the magazine to the initialsection oit' the track, in position for engageinent by the ieed means.

l5. :in combination Tith a display device as in claini i3,aiselector.controlling the dev livery ot single sheets :from themagazine to the initial section et the track, in position for engagementoit its top rod by the toed ineanaend ineens ei'lgageable by said "eediii-cans in its advance to operaie saidsi-n eter.

lo. ln combinationwith a display vdevice as in claiin 13, a selectorcontrolling the delivery olf' sin gie sheets troni the magasine to theinitial section of the track, in position igageinent' otits top rodbythe feed ineens, ineens ei'igageable by said feed ineens in its adimeans en tion i `I0Wblefby the Steed ineans after r,id .selectoraniiprior to' engement or the sheetis top rod, to insure s2 nl selectorto normal position.

Y n oi" claim ll, switch mechanism positioned fp, ii en 9111MB 't i r icpani or san cui means adjacent the n point oi said magazine lfor disenngthe sheet 'from the 'feed ineens, and .nvitch-controlfineens engageableby said `leed ii'ieans as it advances.

' 18. lircoinbniation with a display device ni i3, aselectorcontrolling,` the delivery or single sheets troni the magazineto the initial section ot the track, in position JI in, f". A L lorengaieinent or its top rod by the reed nieans, means engageable by saidfee-l ineans in advaniice to operate `said selector, ineens fenp'ageableby the feed ineans'after oigieration oi? said selector and priortoengagement? of the sheets top rod, toy insure retnrnfoi said selector tonorinal position, switch nicchiace to operate said selector, and

ln conibination with a display device.

lll)

said f 'nt of seid from the feed means, and switch-control .i ansengageable by said feed means as it advances.

i9, il display device including a l endless chain and guides therefor,o. magazine included within the run of said chain, and comprisinginclined tracks for receiving a philralir-y of rods each secured in anuppermost edge of a flexible display sheet, means for selecting a singlerod at a time from said tracks, guide means for said sheets, and meanscarried by sf 'd chain :for operating said selecto f and for engagingthe lowermost edge ol" the selected sheet to advance such sheet alongsaid guide means into display position, said guide means andv saidchaincarried means then cooperating` to deliver the selected sheet tothe receiving point of said magazine with its previously uppermost edgeagain at the upper end of the inclined tracks.

20. A display device including` an endless chain and guides therefor, amagazine within the run of said chain comprising ripper and lower pairsof inclined tracks for receiving opposite ends of two rods secured inthe bottom and top edges, respectively, of a flexible sheet, means forseparating the uppermost and lowermost rods or a given sheetsimultaneously from the magazine, and for positioning he lowermost rodin the path of said chain, a pin carried by r said chain and engageablewith said lowermost rod, and a guide in general following the run of thechain, said pin and said guide cooperating to advance the sheet intodisplay position, and then into position to be received by the receivingends of the magazine tracks.

` 2l. In combination with display device in claim 20, a switch mechanismpositioned in the path of said chain and a( i.. centl the receiving endof the upper magasine track, means engageable by said pin for movingsaid switch, after passage of the pinengaged rod of the sheet, from itsnormal position into position to intercept the following rod, and othermeans engageable by said pin thereafter and after diversion of thefollowing rod by said switch throw said switch into its normal position.

22. ln combination with a display device as in claim 20, meanspositioned in tl e path of the pin, and engageable thereby as itapproaches the delivery end of the me zine, to operate said selector, amthereafter further engageable by the pin, prior to its engagement withthe rod, to insure return of said selector to its normal position.

23. A display device as in claim 20, tl e chain having a pair of pinsspaced from each other and from the first pin to receive the bottom orfollowing rod of the advancing sheet, and to maintain the bottom edge ofthe sheet aligned with the run of the caain.

2st. A display device as in claim 20, the chain having a. pair of pinsspaced from each other and from the first pin to receive the bottom orfollowing rod of thel advancing sheet, and to maintain the bottom edgeof the sheet aligned iith the run of the chain, selector and switchmechanisnis for directing the sheet and its rods into and fromengagement with the first pin, control means therefor including memberspositioned in the path of said pins, the pair of pins projecting lessthan the first pin and passing beneath said control means.

il, method of handling display sheets delivered from and received by amagazine, which comprises bodily moving a sheet for- `'ardly 'trom themagazine, then moving it downward endwise, reversing it and moving itupward into display position, again reversing it through endwiscmovement, and inally moving it bodily forward into and through themagazine with the top edge lowermost.

2G, ln a display mechanism, in combination, an intermittently recurringdisplay sheet, a plurality of independent display sheets, and means forcontrolling` movement of each of said series of sheets in turn intodisplay position, and therefrom, and for moving said recurring displaysheet into display position during movement of sheets in the series,said control means comprising a master gear, two pins carried thereby, aslotted wheely engageable by each of said pins in succession to advanceit intermittently in opposite directions, oaerative connections betweensaid wheel and the recurring display sheet, a second slotted wheelengageable by one of said pins to advanceV it intermittently in the samedirection, and operative connections between said second wheel and toefeed means Jfor said series of display sheets.

27. ln a display apparatus for a plurality of independent, flexiblesheets, magazineincluding means for supporting and permitting bodilylateral movement of the sheets, means for guiding said sheets from said.magazine to and past a display position, and back to the magazine, saidguide means including an initial portion adapted to suspend a singlesheet by its upper edge, and sheet-selecting means engageable with thedepending portion of a sheet which is held in the initial portion of theguide means to pull it downward therefrom to initiate its advance.

28. A display device including an endless chain and guides therefor, amagazine within the run of said chain comprising upper vand lower pairsof inclined tracks for receiving opposite ends of two rodssecured lll!)in the bottom and top edges, respeetivoy, of a exible sheet, means ioiseparating the uppermost and loweiniost iods of a given snee/'ssimultaneously `fioin tie ,magazine5 and foi1 positioning theiowei'inost od in the path oi said Chain, a pin czziied by seid chainand engageable with seid loweiinost rod, and a` guide in genei'zdicoiowing the run of the chain, said pin and said guide cooperating toadvance the shee, intodieplay positimi, and then into position to berooeved by the receiving ends oi 'the magezine "cracks and :i Second pinCarried by the @ein sind spaced from *die iffet pin to position it inadvance of the foliowng rod of l 'the sheet, to pi'even: collapse ofthesheet.

when invented.

Signed at Seatle, King; County, Washington, this 28th day of September,1925.

HARRS G. WARD

